If USB ports are enabled don't you get this error, do you?
Then maybe there's a new version of BIOS on Asus web site that fixes the error...

Have you Googled this problem? I did, and the first result goes into the problem in detail with a couple of solutions.

Google Search

Yes, no errors if they are enabled and that is why clearing cmos helps because it enables the usb ports again. The motherboard already has the newest 1018.002 bios. If anyone else has the same motherboard, it would be nice if you could test disabling usb ports to see if there is something wrong with the motherboard or if this is just a feature. I assume rev 1 and rev 2 of this motherboard both use the same bios updates?

fitzpatr wrote:

Have you Googled this problem? I did, and the first result goes into the problem in detail with a couple of solutions.

Google Search

I have done that before and the solutions I have found don't apply because they seem to assume I have usb devices connected or I have front panel usb ports connected to the header on the motherboard.

Not at all. That it happens only when you disable USB doesn't mean that one of these won't fix your problem. One recommends that you alter the AGP Aperture size to 256MB, and another talks about cleaning all of the USB ports with compressed air. Yet another describes problems with a faulty RAM stick. Another in a different page has this problem because he was missing a jumper connector.

It seems like this board really likes giving this error. There is also the possibility that the ICH has a problem, or something else involved in the USB circuit, but let's hope not.

Hopefully, one of these will help. Which version of BIOS are you using?

fitzpatr wrote:

Not at all. That it happens only when you disable USB doesn't mean that one of these won't fix your problem. One recommends that you alter the AGP Aperture size to 256MB, and another talks about cleaning all of the USB ports with compressed air. Yet another describes problems with a faulty RAM stick. Another in a different page has this problem because he was missing a jumper connector.

It seems like this board really likes giving this error. There is also the possibility that the ICH has a problem, or something else involved in the USB circuit, but let's hope not.

Hopefully, one of these will help. Which version of BIOS are you using?

I use the newest 1018.002 bios. AGP aperture size is 256MB by default so that setting stays even after cmos clear. I have tested that there is no problems with ram. I also couldn't find any case online where disabling usb ports in bios caused the problem. Probably not many people disable their USB ports. I saw one case where someone went from bios 1017 back to bios 1015 and that fixed the problem but that didn't say anything about disabling usb ports in bios either. Also the older 1015 bios doesn't support the cpu that I have.